<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div class="list" style="display:flex; text-align:center;">

    </div>
    <button class="prev">上一页</button>
    <button class="next">下一页</button>
</body>

</html>
<script src="./Promise.js"></script>
<script>
    //保存当前页码
    var page = 1;
    //点击上一页，获取上一页的表情，渲染表情
    document.querySelector('.prev').onclick = function () {
        if (page > 1) {
            ajax('get', `https://yantianfeng.com/api/emotion`, { page: --page, count: 10 }).then((data) => {
                var str = data.emotions.map((item, index) => {
                    return `<div><img src="${item.url}"/><div> ${item.title} </div> </div>`

                }).join('')


                //渲染表情
                document.querySelector('.list').innerHTML = str;
            });
        }
    }

    //点击上一页，获取上一页的表情，渲染表情
    document.querySelector('.next').onclick = function () {
        if (page < 4) {
            ajax('get', `https://yantianfeng.com/api/emotion`, { page: ++page, count: 10 }).then((data) => {
                var str = data.emotions.map((item, index) => {
                    return `<div><img src="${item.url}"/><div> ${item.title} </div> </div>`

                }).join('')

                //渲染表情
                document.querySelector('.list').innerHTML = str;
            })

        }
    }
</script>